2 papers
math.NA2025
On the impact of observation error correlations in data assimilation, with application to along-track altimeter data
Olivier Goux, Anthony Weaver, Selime Gürol +2
Data assimilation involves estimating the state of a system by combining observations from various sources with a background estimate of the state. The weights given to the observa…
math.NA2022
Impact of correlated observation errors on the convergence of the conjugate gradient algorithm in variational data assimilation
Olivier Goux, Selime Gürol, Anthony T. Weaver +2
An important class of nonlinear weighted least-squares problems arises from the assimilation of observations in atmospheric and ocean models. In variational data assimilation, inve…